Block

Positions at a glance

Supporters

Most committees end up with two to four competing blocks, each producing a separate draft resolution. A typical block will include a "leader" or small core that drives drafting, "merger" delegates who negotiate with rival blocks, and signatories who contribute clauses in exchange for support. Smaller blocks often merge before voting procedure to avoid being outnumbered, since most draft resolutions require only a simple majority to pass.

Opponents

Chairs and award judges typically distinguish between constructive block leadership (substantive contribution, diplomacy, willingness to merge) and power-delegate behavior (excluding smaller delegations, monopolizing the pen). Strong conferences such as HNMUN, WorldMUN, and NHSMUN explicitly encourage cross-block negotiation and penalize delegates who refuse to engage with opposing groups.

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Example

At NHSMUN 2023, delegates representing EU member states formed a block in the DISEC committee to co-sponsor a draft resolution on autonomous weapons systems, eventually merging with a Latin American block before voting procedure.

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Positions at a glance

Supporters

Opponents

Research it like a delegate

In Model UN, a block (sometimes spelled "bloc") is an informal coalition of delegates that forms during unmoderated caucus to pool ideas, co-author a draft resolution, and consolidate voting strength. Blocks are usually built around shared regional interests, ideological alignment, or overlapping policy goals on the topic at hand. Their real-world analog is the voting groups that operate inside the UN General Assembly and other multilateral bodies, such as the Group of 77, the African Group, the European Union coordination group, or the Non-Aligned Movement.

Effective block strategy generally involves:

Recruiting early during the first unmoderated caucus, before rival groupings solidify.
Allocating roles, such as a speaker, a typist, and floor negotiators.
Writing inclusively so that mid-tier delegates see their ideas reflected and stay loyal.
Managing optics for the dais, since chairs reward delegates who broaden consensus rather than dominate.

Chairs and award judges typically distinguish between constructive block leadership (substantive contribution, diplomacy, willingness to merge) and power-delegate behavior (excluding smaller delegations, monopolizing the pen). Strong conferences such as HNMUN, WorldMUN, and NHSMUN explicitly encourage cross-block negotiation and penalize delegates who refuse to engage with opposing groups.

It is worth noting that "block" in MUN parlance is distinct from a motion to divide the question, and from a parliamentary "blocking minority" (the threshold a minority needs to prevent passage), though all three relate to how voting coalitions shape outcomes.

Frequently asked questions

Is it spelled 'block' or 'bloc' in Model UN?

Both spellings are used. 'Bloc' follows the diplomatic convention (e.g., Eastern Bloc, EU bloc), while 'block' is common in North American MUN circuits. They refer to the same concept.

How many blocks usually form in a committee?

Most committees produce two to four competing blocks, often aligned by region or ideology. Smaller committees like Security Council or specialized crisis cabinets may form only one or two.

Can a delegate switch blocks during a session?

Yes. Delegates frequently move between blocks or co-sponsor multiple drafts, especially before voting procedure when smaller blocks merge to secure a majority.

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Positions at a glance

Supporters

Opponents

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Research Block like a delegate

Positions at a glance

Supporters

Opponents

Research it like a delegate

Ask a follow-up about Block

Frequently asked questions

Is it spelled 'block' or 'bloc' in Model UN?

How many blocks usually form in a committee?

Can a delegate switch blocks during a session?

Go deeper than the definition

Take Block beyond the glossary

Frequently asked questions

Is it spelled 'block' or 'bloc' in Model UN?

How many blocks usually form in a committee?

Can a delegate switch blocks during a session?